QPID-3732 Committing a patch by Weston Price.

This file somehow slipped through the cracks when committing the first
patch.

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1298598 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 283 insertions, 0 deletions

diff --git a/qpid/java/jca/example/src/main/java/org/apache/qpid/jca/example/web/QpidRequestResponseServlet.java b/qpid/java/jca/example/src/main/java/org/apache/qpid/jca/example/web/QpidRequestResponseServlet.java
new file mode 100644
index 0000000000..195a54242f
--- /dev/null
+++ b/qpid/java/jca/example/src/main/java/org/apache/qpid/jca/example/web/QpidRequestResponseServlet.java
@@ -0,0 +1,283 @@
+/*
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+
+package org.apache.qpid.jca.example.web;
+import java.io.IOException;
+import java.lang.Thread;
+
+import javax.annotation.Resource;
+import javax.jms.Connection;
+import javax.jms.ConnectionFactory;
+import javax.jms.Destination;
+import javax.jms.Message;
+import javax.jms.MessageConsumer;
+import javax.jms.MessageProducer;
+import javax.jms.Session;
+import javax.jms.TextMessage;
+import javax.naming.InitialContext;
+import javax.servlet.ServletConfig;
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import javax.transaction.UserTransaction;
+
+import org.apache.qpid.jca.example.ejb.QpidTest;
+import org.apache.qpid.jca.example.ejb.QpidUtil;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+@SuppressWarnings("serial")
+public class QpidRequestResponseServlet extends HttpServlet
+{
+    private static final Logger _log = LoggerFactory.getLogger(QpidTestServlet.class);
+
+    private static final String DEFAULT_MESSAGE = "Hello, World!";
+    private static final int DEFAULT_COUNT = 1;
+    private static final boolean DEFAULT_XA = false;
+    private static final boolean DEFAULT_TX = false;
+    private static final boolean USE_TMP_QUEUE = false;
+
+    @Resource(@jndi.scheme@="@qpid.xacf.jndi.name@")
+    private ConnectionFactory _connectionFactory;
+
+    @Resource(@jndi.scheme@="QpidRequestQueue")
+    private Destination _queue;
+
+    @Resource(@jndi.scheme@="QpidResponseQueue")
+    private Destination _responseQueue;
+
+
+    @Override
+    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException
+    {
+        doPost(req, resp);
+    }
+
+    @Override
+    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException
+    {
+        InitialContext ctx = null;
+        Connection connection = null;
+        Session session = null;
+        MessageProducer messageProducer = null;
+        UserTransaction ut = null;
+        boolean useXA = false;
+        boolean rollback = false;
+        boolean useTx = false;
+        MessageConsumer messageConsumer = null;
+        long startTime = 0;
+
+        try
+        {
+            String content = (req.getParameter("message") == null) ? DEFAULT_MESSAGE : req.getParameter("message");
+            int count = (req.getParameter("count") == null) ? DEFAULT_COUNT : Integer.valueOf(req.getParameter("count"));
+            useXA = (req.getParameter("useXA") == null) ? DEFAULT_XA : Boolean.valueOf(req.getParameter("useXA"));
+            useTx = (req.getParameter("useTx") == null) ? DEFAULT_TX : Boolean.valueOf(req.getParameter("useTx"));
+
+            ctx = new InitialContext();
+
+            _log.debug("Environment: ");
+            _log.debug("Message content: " + content);
+            _log.debug("Message count:" + count);
+            _log.debug("Using XA: " + useXA);
+
+            resp.getOutputStream().println("Environment: ");
+            resp.getOutputStream().println("Message content: " + content);
+            resp.getOutputStream().println("Message count:" + count);
+            resp.getOutputStream().println("Using XA: " + useXA);
+
+            try
+            {
+
+                connection = _connectionFactory.createConnection();
+
+                if(useXA)
+                {
+                    ut = (UserTransaction)ctx.lookup("java:comp/UserTransaction");
+                    ut.begin();
+                    useTx = false;
+                }
+
+                session = (useXA) ? connection.createSession(false, Session.AUTO_ACKNOWLEDGE) : connection.createSession(useTx, Session.AUTO_ACKNOWLEDGE);
+                messageProducer = session.createProducer(_queue);
+
+                startTime = System.currentTimeMillis();
+
+                for(int i = 0; i < count; i++)
+                {
+                    TextMessage message = session.createTextMessage(content);
+                    message.setJMSReplyTo(_responseQueue);
+                    messageProducer.send(message);
+                }
+
+            }
+            catch(Exception e)
+            {
+                rollback = true;
+
+                if(useXA && ut != null)
+                {
+                    try
+                    {
+                        ut.setRollbackOnly();
+                    }
+                    catch(Exception ex)
+                    {
+                        _log.error(ex.getMessage(), ex);
+                        throw new ServletException(ex.getMessage(), ex);
+                    }
+                }
+            }
+            finally
+            {
+                try
+                {
+                    if(useXA && ut != null)
+                    {
+                        if(rollback)
+                        {
+                            ut.rollback();
+                        }
+                        else
+                        {
+                            ut.commit();
+                        }
+                    }
+                    if(useTx && !useXA)
+                    {
+                        if(rollback)
+                        {
+                            session.rollback();
+                        }
+                        else
+                        {
+                            session.commit();
+                        }
+                    }
+                }
+                catch(Exception e)
+                {
+                    _log.error(e.getMessage(), e);
+                    throw new ServletException(e.getMessage(), e);
+                }
+
+                QpidUtil.closeResources(messageProducer, session);
+            }
+
+            resp.getOutputStream().println("Sent " + count + " messages with content '" + content + "'");
+            resp.getOutputStream().flush();
+
+            int ackMode = Session.AUTO_ACKNOWLEDGE;
+            rollback = false;
+
+            if(useXA)
+            {
+                ut.begin();
+            }
+
+            session = (useXA) ? connection.createSession(false, Session.AUTO_ACKNOWLEDGE) : connection.createSession(useTx, Session.AUTO_ACKNOWLEDGE);
+            messageConsumer = session.createConsumer(_responseQueue);
+            connection.start();
+
+            for(int i = 0; i < count; i++)
+            {
+                TextMessage message = (TextMessage)messageConsumer.receive(5000);
+
+                if(message != null)
+                {
+                    message.acknowledge();
+                    content = message.getText();
+
+                }
+            }
+
+            startTime = System.currentTimeMillis() - startTime;
+            resp.getOutputStream().println("Received " + count + " messages with content '" + content + "'");
+            resp.getOutputStream().println("Total process time " + startTime);
+        }
+        catch(Exception e)
+        {
+            rollback = true;
+
+            if(useXA && ut != null)
+            {
+                try
+                {
+                    ut.setRollbackOnly();
+                }
+                catch(Exception ex)
+                {
+                    _log.error(ex.getMessage(), ex);
+                    throw new ServletException(ex.getMessage(), ex);
+                }
+            }
+        }
+        finally
+        {
+            if(useXA && ut != null)
+            {
+                try
+                {
+                    if(rollback)
+                    {
+                        ut.rollback();
+                    }
+                    else
+                    {
+                        ut.commit();
+                    }
+                }
+                catch(Exception e)
+                {
+                    _log.error(e.getMessage(), e);
+                    throw new ServletException(e.getMessage(), e);
+
+                }
+            }
+
+            if(useTx && !useXA)
+            {
+                try
+                {
+                    if(rollback)
+                    {
+                        session.rollback();
+                    }
+                    else
+                    {
+                        session.commit();
+                    }
+                }
+                catch(Exception e)
+                {
+                    _log.error(e.getMessage(), e);
+                    throw new ServletException(e.getMessage(), e);
+                }
+            }
+
+            QpidUtil.closeResources(messageProducer, session);
+        }
+    }
+
+}
+
+